1 <html>
2 <head>
3 <meta charset="utf-8">
4 <title>jQuery实现</title>
5 <script src="jquery.js"></script>
6
7 <style type="text/css">
8 table{background-color:pink;300px;height:200px;}
9 td{text-align:center;}
10 </style>
11
12 <script language="javascript">
13 $("document").ready(function(){
14 $("#b1").click(function(){
15 var num1=$("#num1").val();
16 var num2=$("#num2").val();
17 var num3=eval(num1)+eval(num2);
18 $("#num3").val(num3);
19
20 });
21
22 $("#b2").click(function(){
23 var num1=$("#num1").val();
24 var num2=$("#num2").val();
25 var num3=eval(num1)-eval(num2);
26 $("#num3").val(num3);
27 });
28
29 $("#b3").click(function(){
30 var num1=$("#num1").val();
31 var num2=$("#num2").val();
32 var num3=eval(num1)*eval(num2);
33 $("#num3").val(num3);
34 });
35
36 $("#b4").click(function(){
37 var num1=$("#num1").val();
38 var num2=$("#num2").val();
39 var num3=eval(num1)/eval(num2);
40 $("#num3").val(num3);
41 });
42 });
43 </script>
44 </head>
45 <body>
46 <center>
47 <form action="" method="post">
48 <table border="1px">
49 <tr>
50 <td>数字1：</td>
51 <td><input type="text" id="num1"/></td>
52 </tr>
53 <tr>
54 <td>数字2：</td>
55 <td><input type="text" id="num2"/></td>
56 </tr>
57 <tr>
58 <td>结果：</td>
59 <td><input type="text" id="num3"/></td>
60 </tr>
61 <tr>
62 <td colspan="4">
63 <input type="button" value="加" id="b1"/>
64 <input type="button" value="减" id="b2"/>
65 <input type="button" value="乘" id="b3"/>
66 <input type="button" value="除" id="b4"/>
67 </td>
68 </tr>
69 </table>
70 </form>
71 <center>
72 </body>
73 </html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>九九乘法表</title>
<style type="text/css">
table{
background-color:pink;
color:red;
}
</style>
</head>
<body>
<h1>计算器</h1>
<table border="1" align="center">
<tr>
<td>数值1：<input type="text" name="num1" id="num1"/></td>
</tr>
<tr>
<td>数值2：<input type="text" name="num2" id="num2"/></td>
</tr>
<tr>
<td>结 果：<input type="text" name="num3" id="num3"/></td>
</tr>
<tr>
<td colspan="4"><input type="button" value="加法" style="color:blue;" onclick="add()"/>
<input type="button" value="减法" style="color:blue;" onclick="reduce()"/>
<input type="button" value="乘法" style="color:blue;" onclick="multiplication()"/>
<input type="button" value="除法" style="color:blue;" onclick="division()"/>
</td>
</tr>
</table>
<script language="javascript">
function add(){
var num1=document.getElementById("num1").value;
var num2=document.getElementById("num2").value;
if(parseInt(num1)==num1){
var num1=parseInt(num1);
}else{
var num1=parseFloat(num1);
num1=parseFloat(num1.toFixed(2));
}
if(parseInt(num2)==num2){
var num2=parseInt(num2);
}else{
var num2=parseFloat(num2);
num2=parseFloat(num2.toFixed(2));/*小数点尾度精确到2*/
}
document.getElementById("num3").value=num1+num2;
}
function reduce(){
var num1=document.getElementById("num1").value;
var num2=document.getElementById("num2").value;
if(parseInt(num1)==num1){
var num1=parseInt(num1);
}else{
var num1=parseFloat(num1);
num1=parseFloat(num1.toFixed(2));
}
if(parseInt(num2)==num2){
var num2=parseInt(num2);
}else{
var num2=parseFloat(num2);
num2=parseFloat(num2.toFixed(2));/*小数点尾度精确到2*/
}
document.getElementById("num3").value=num1-num2;
}
function multiplication(){
var num1=document.getElementById("num1").value;
var num2=document.getElementById("num2").value;
if(parseInt(num1)==num1){
var num1=parseInt(num1);
}else{
var num1=parseFloat(num1);
num1=parseFloat(num1.toFixed(2));
}
if(parseInt(num2)==num2){
var num2=parseInt(num2);
}else{
var num2=parseFloat(num2);
num2=parseFloat(num2.toFixed(2));/*小数点尾度精确到2*/
}
document.getElementById("num3").value=num1*num2;
}
function division(){
var num1=document.getElementById("num1").value;
var num2=document.getElementById("num2").value;
if(parseInt(num1)==num1){
var num1=parseInt(num1);
}else{
var num1=parseFloat(num1);
num1=parseFloat(num1.toFixed(2));
}
if(parseInt(num2)==num2){
var num2=parseInt(num2);
}else{
var num2=parseFloat(num2);
num2=parseFloat(num2.toFixed(2));/*小数点尾度精确到2*/
}
document.getElementById("num3").value=num1/num2;
}
</script>
</body>
</html>
